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Comparison of concomitant therapy versus standard triple-drug therapy for eradication of Helicobacter pylori infection: A prospective open-label randomized controlled trial.

Jha SK, Mishra MK, Saharawat K, Jha P, Purkayastha S, Ranjan R.

Indian J Gastroenterol. 2019 Sep 14. doi: 10.1007/s12664-019-00949-4. [Epub ahead of print]


Contrasting diversity of vaginal lactobacilli among the females of Northeast India.

Das Purkayastha S, Bhattacharya MK, Prasad HK, Upadhyaya H, Lala SD, Pal K, Das M, Sharma GD, Bhattacharjee MJ.

BMC Microbiol. 2019 Aug 27;19(1):198. doi: 10.1186/s12866-019-1568-6.


Candy cane revision after Roux-en-Y gastric bypass.

Kamocka A, McGlone ER, Pérez-Pevida B, Moorthy K, Hakky S, Tsironis C, Chahal H, Miras AD, Tan T, Purkayastha S, Ahmed AR.

Surg Endosc. 2019 Aug 8. doi: 10.1007/s00464-019-06988-4. [Epub ahead of print]


Metabolic Changes and Diabetes Microvascular Complications 5 Years After Obesity Surgery.

Miras AD, Ravindra S, Humphreys A, Lascaratos G, Quartey KNK, Ahmed AR, Cousins J, Moorthy K, Purkayastha S, Hakky S, Tan T, Chahal HS.

Obes Surg. 2019 Aug 2. doi: 10.1007/s11695-019-04095-w. [Epub ahead of print]


Identification of Patients in Need of Advanced Care for Depression Using Data Extracted From a Statewide Health Information Exchange: A Machine Learning Approach.

Kasthurirathne SN, Biondich PG, Grannis SJ, Purkayastha S, Vest JR, Jones JF.

J Med Internet Res. 2019 Jul 22;21(7):e13809. doi: 10.2196/13809.


Reduced heart rate variability and lower cerebral blood flow associated with poor cognition during recovery following concussion.

Purkayastha S, Williams B, Murphy M, Lyng S, Sabo T, Bell KR.

Auton Neurosci. 2019 Sep;220:102548. doi: 10.1016/j.autneu.2019.04.004. Epub 2019 Apr 29.


Impact of Routine Counseling on Breastfeeding Status in Hospitalized Infants Below 6 Months: Observation From a Large Diarrheal Disease Hospital in Bangladesh.

Nuzhat S, Islam R, Ahmed T, Sarker SA, Khan AI, Purkayastha S, Chisti MJ.

Glob Pediatr Health. 2019 Jun 13;6:2333794X19854942. doi: 10.1177/2333794X19854942. eCollection 2019.


Autonomic nervous system dysfunction in mild traumatic brain injury: a review of related pathophysiology and symptoms.

Purkayastha S, Stokes M, Bell KR.

Brain Inj. 2019;33(9):1129-1136. doi: 10.1080/02699052.2019.1631488. Epub 2019 Jun 20.


Combined GLP-1, Oxyntomodulin, and Peptide YY Improves Body Weight and Glycemia in Obesity and Prediabetes/Type 2 Diabetes: A Randomized, Single-Blinded, Placebo-Controlled Study.

Behary P, Tharakan G, Alexiadou K, Johnson N, Wewer Albrechtsen NJ, Kenkre J, Cuenco J, Hope D, Anyiam O, Choudhury S, Alessimii H, Poddar A, Minnion J, Doyle C, Frost G, Le Roux C, Purkayastha S, Moorthy K, Dhillo W, Holst JJ, Ahmed AR, Prevost AT, Bloom SR, Tan TM.

Diabetes Care. 2019 Aug;42(8):1446-1453. doi: 10.2337/dc19-0449. Epub 2019 Jun 8.


Comparison of Open-Source Electronic Health Record Systems Based on Functional and User Performance Criteria.

Purkayastha S, Allam R, Maity P, Gichoya JW.

Healthc Inform Res. 2019 Apr;25(2):89-98. doi: 10.4258/hir.2019.25.2.89. Epub 2019 Apr 30.


Mortality of the Severely Obese: A Population Study.

Moussa OM, Erridge S, Chidambaram S, Ziprin P, Darzi A, Purkayastha S.

Ann Surg. 2019 Jun;269(6):1087-1091. doi: 10.1097/SLA.0000000000002730.


Use of Stimulants in Patients with Psychosis Having Past History of or Co-occurring Attention Deficit Hyperactivity Disorder: Is it Safe?

Purkayastha S, Patil V, Sahu A.

Indian J Psychol Med. 2019 Mar-Apr;41(2):195-196. doi: 10.4103/IJPSYM.IJPSYM_262_18. No abstract available.


Optimum timing of emergency cholecystectomy for acute cholecystitis in England: population-based cohort study.

Wiggins T, Markar SR, MacKenzie H, Faiz O, Mukherjee D, Khoo DE, Purkayastha S, Beckingham I, Hanna GB.

Surg Endosc. 2019 Aug;33(8):2495-2502. doi: 10.1007/s00464-018-6537-x. Epub 2019 Apr 4.


Effect of body mass index on depression in a UK cohort of 363 037 obese patients: A longitudinal analysis of transition.

Moussa OM, Ardissino M, Kulatilake P, Faraj A, Muttoni E, Darzi A, Ziprin P, Scholtz S, Purkayastha S.

Clin Obes. 2019 Jun;9(3):e12305. doi: 10.1111/cob.12305. Epub 2019 Mar 5.


Pathways to Care for Patients with Bipolar-I Disorder: An Exploratory Study from a Tertiary Care Centre of North India.

Sahu A, Patil V, Purkayastha S, Pattanayak RD, Sagar R.

Indian J Psychol Med. 2019 Jan-Feb;41(1):68-74. doi: 10.4103/IJPSYM.IJPSYM_201_18.


Balance Testing Following Concussion: Postural Sway versus Complexity Index.

Purkayastha S, Adair H, Woodruff A, Ryan LJ, Williams B, James E, Bell KR.

PM R. 2019 Feb 6. doi: 10.1002/pmrj.12129. [Epub ahead of print]


Impaired Cerebral Vasoreactivity Despite Symptom Resolution in Sports-Related Concussion.

Purkayastha S, Sorond FA, Lyng S, Frantz J, Murphy MN, Hynan LS, Sabo T, Bell KR.

J Neurotrauma. 2019 Aug 15;36(16):2385-2390. doi: 10.1089/neu.2018.5861. Epub 2019 Apr 23.


Post-endoscopic retrograde cholangiopancreatography pneumothorax: Report of two cases and literature review.

Jha AK, Jha P, Priyadarshi RN, Jha SK, Purkayastha S, Kumar R.

JGH Open. 2018 Oct 15;2(6):329-332. doi: 10.1002/jgh3.12095. eCollection 2018 Dec.


Polyethylene glycol plus bisacodyl: A safe, cheap, and effective regimen for colonoscopy in the South Asian patients.

Jha AK, Chaudhary M, Jha P, Kumar U, Dayal VM, Jha SK, Purkayastha S, Ranjan R, Mishra M, Sehrawat K.

JGH Open. 2018 Aug 10;2(6):249-254. doi: 10.1002/jgh3.12077. eCollection 2018 Dec.


Surgical options for glycaemic control in Type 1 diabetes.

Yeung KTD, Reddy M, Purkayastha S.

Diabet Med. 2019 Apr;36(4):414-423. doi: 10.1111/dme.13885. Epub 2019 Jan 10. Review.


Idiopathic intracranial hypertension in the British population with obesity.

Ardissino M, Moussa O, Tang A, Muttoni E, Ziprin P, Purkayastha S.

Acta Neurochir (Wien). 2019 Feb;161(2):239-246. doi: 10.1007/s00701-018-3772-9. Epub 2018 Dec 18.


A Randomized Controlled Trial of Skills Transfer: From Touch Surgery to Laparoscopic Cholecystectomy.

Chidambaram S, Erridge S, Leff D, Purkayastha S.

J Surg Res. 2019 Feb;234:217-223. doi: 10.1016/j.jss.2018.09.042. Epub 2018 Oct 11.


Optimal cut-off value of fecal calprotectin for the evaluation of ulcerative colitis: An unsolved issue?

Jha AK, Chaudhary M, Dayal VM, Kumar A, Jha SK, Jha P, Purkayastha S, Ranjan R.

JGH Open. 2018 Aug 10;2(5):207-213. doi: 10.1002/jgh3.12074. eCollection 2018 Oct.


Telementoring of Surgeons: A Systematic Review.

Erridge S, Yeung DKT, Patel HRH, Purkayastha S.

Surg Innov. 2019 Feb;26(1):95-111. doi: 10.1177/1553350618813250. Epub 2018 Nov 22.


Taste Changes after Bariatric Surgery: a Systematic Review.

Ahmed K, Penney N, Darzi A, Purkayastha S.

Obes Surg. 2018 Oct;28(10):3321-3332. doi: 10.1007/s11695-018-3420-8. Review.


Obesity surgery and risk of cancer.

Mackenzie H, Markar SR, Askari A, Faiz O, Hull M, Purkayastha S, Møller H, Lagergren J.

Br J Surg. 2018 Nov;105(12):1650-1657. doi: 10.1002/bjs.10914. Epub 2018 Jul 13.


Prospective Risk Factor Analysis for the Development of Post-operative Urinary Retention Following Ambulatory General Surgery.

Scott AJ, Mason SE, Langdon AJ, Patel B, Mayer E, Moorthy K, Purkayastha S.

World J Surg. 2018 Dec;42(12):3874-3879. doi: 10.1007/s00268-018-4697-4.


Polymorphisms in DNA repair genes increase the risk for type 2 diabetes mellitus and hypertension.

Das S, Purkayastha S, Roy H, Sinha A, Choudhury Y.

Biomol Concepts. 2018 Jun 9;9(1):80-93. doi: 10.1515/bmc-2018-0008.


Correction to: Treatment of Obesity in Young People-a Systematic Review and Meta-analysis.

Selvendran SS, Penney NC, Aggarwal N, Darzi AW, Purkayastha S.

Obes Surg. 2018 Oct;28(10):3361. doi: 10.1007/s11695-018-3324-7.


Reduced Resting and Increased Elevation of Heart Rate Variability With Cognitive Task Performance in Concussed Athletes.

Huang M, Frantz J, Moralez G, Sabo T, Davis PF, Davis SL, Bell KR, Purkayastha S.

J Head Trauma Rehabil. 2019 Jan/Feb;34(1):45-51. doi: 10.1097/HTR.0000000000000409.


Overcoming the Maternal Care Crisis: How Can Lessons Learnt in Global Health Informatics Address US Maternal Health Outcomes?

Kasthurirathne SN, Mamlin BW, Purkayastha S, Cullen T.

AMIA Annu Symp Proc. 2018 Apr 16;2017:1034-1043. eCollection 2017. Review.


Treatment of Obesity in Young People-a Systematic Review and Meta-analysis.

Selvendran SS, Penney NC, Aggarwal N, Darzi AW, Purkayastha S.

Obes Surg. 2018 Aug;28(8):2537-2549. doi: 10.1007/s11695-018-3285-x. Review. Erratum in: Obes Surg. 2018 Jun 7;:.


Fate of the metabolically healthy obese-is this term a misnomer? A study from the Clinical Practice Research Datalink.

Moussa O, Arhi C, Ziprin P, Darzi A, Khan O, Purkayastha S.

Int J Obes (Lond). 2019 May;43(5):1093-1101. doi: 10.1038/s41366-018-0096-z. Epub 2018 May 17.


A Platform for Innovation and Standards Evaluation: a Case Study from the OpenMRS Open-Source Radiology Information System.

Gichoya JW, Kohli M, Ivange L, Schmidt TS, Purkayastha S.

J Digit Imaging. 2018 Jun;31(3):361-370. doi: 10.1007/s10278-018-0088-5. Review.


Risk of GERD-Related Disorders in Obese Patients on PPI Therapy: a Population Analysis.

Erridge S, Moussa OM, Ziprin P, Darzi A, Purkayastha S.

Obes Surg. 2018 Sep;28(9):2796-2803. doi: 10.1007/s11695-018-3246-4.


Mortality of the Severely Obese: A Population Study.

Moussa OM, Erridge S, Chidambaram S, Ziprin P, Darzi A, Purkayastha S.

Ann Surg. 2018 Mar 8. doi: 10.1097/SLA.0000000000002730. [Epub ahead of print]


Variation in Exhaled Acetone and Other Ketones in Patients Undergoing Bariatric Surgery: a Prospective Cross-sectional Study.

Boshier PR, Fehervari M, Markar SR, Purkayastha S, Spanel P, Smith D, Hanna GB.

Obes Surg. 2018 Aug;28(8):2439-2446. doi: 10.1007/s11695-018-3180-5.


The influence of the carotid baroreflex on dynamic regulation of cerebral blood flow and cerebral tissue oxygenation in humans at rest and during exercise.

Purkayastha S, Maffuid K, Zhu X, Zhang R, Raven PB.

Eur J Appl Physiol. 2018 May;118(5):959-969. doi: 10.1007/s00421-018-3831-1. Epub 2018 Mar 1.


Comparative Performance Analysis of Different Fingerprint Biometric Scanners for Patient Matching.

Kasiiti N, Wawira J, Purkayastha S, Were MC.

Stud Health Technol Inform. 2017;245:1053-1057.


Secondary intracranial hypertension (pseudotumor cerebri) presenting as post-traumatic headache in mild traumatic brain injury: a case series.

Sabo T, Supnet C, Purkayastha S.

Childs Nerv Syst. 2018 Apr;34(4):681-690. doi: 10.1007/s00381-017-3681-x. Epub 2017 Dec 11.


Comparison of gaze behaviour of trainee and experienced surgeons during laparoscopic gastric bypass.

Erridge S, Ashraf H, Purkayastha S, Darzi A, Sodergren MH.

Br J Surg. 2018 Feb;105(3):287-294. doi: 10.1002/bjs.10672. Epub 2017 Nov 28.


Know thy eHealth user: Development of biopsychosocial personas from a study of older adults with heart failure.

Holden RJ, Kulanthaivel A, Purkayastha S, Goggins KM, Kripalani S.

Int J Med Inform. 2017 Dec;108:158-167. doi: 10.1016/j.ijmedinf.2017.10.006. Epub 2017 Oct 9.


Interventions to improve employee health and well-being within health care organizations: A systematic review.

Williams SP, Malik HT, Nicolay CR, Chaturvedi S, Darzi A, Purkayastha S.

J Healthc Risk Manag. 2018 Apr;37(4):25-51. doi: 10.1002/jhrm.21284. Epub 2017 Nov 8. Review.


Diversity of methanogenic archaea in freshwater sediments of lacustrine ecosystems.

Laskar F, Das Purkayastha S, Sen A, Bhattacharya MK, Misra BB.

J Basic Microbiol. 2018 Feb;58(2):101-119. doi: 10.1002/jobm.201700341. Epub 2017 Oct 30. Review.


Using cognitive fit theory to evaluate patient understanding of medical images.

Gichoya JW, Alarifi M, Bhaduri R, Tahir B, Purkayastha S.

Conf Proc IEEE Eng Med Biol Soc. 2017 Jul;2017:2430-2433. doi: 10.1109/EMBC.2017.8037347.


Data on a Laves phase intermetallic matrix composite in situ toughened by ductile precipitates.

Knowles AJ, Bhowmik A, Purkayastha S, Jones NG, Giuliani F, Clegg WJ, Dye D, Stone HJ.

Data Brief. 2017 Aug 3;14:489-493. doi: 10.1016/j.dib.2017.08.005. eCollection 2017 Oct.


Perioperative Practices Concerning One Anastomosis (Mini) Gastric Bypass: A Survey of 210 Surgeons.

Mahawar KK, Kular KS, Parmar C, Van den Bossche M, Graham Y, Carr WRJ, Madhok B, Magee C, Purkayastha S, Small PK.

Obes Surg. 2018 Jan;28(1):204-211. doi: 10.1007/s11695-017-2831-2.


Implementation of a single sign-on system between practice, research and learning systems.

Purkayastha S, Gichoya JW, Addepally SA.

Appl Clin Inform. 2017 Mar 29;8(1):306-312. doi: 10.4338/ACI-2016-10-CR-0171.


Impulsivity predicts weight loss after obesity surgery.

Kulendran M, Borovoi L, Purkayastha S, Darzi A, Vlaev I.

Surg Obes Relat Dis. 2017 Jun;13(6):1033-1040. doi: 10.1016/j.soard.2016.12.031. Epub 2017 Jan 4.


Reversal to normal anatomy after failed gastric bypass: systematic review of indications, techniques, and outcomes.

Pucher PH, Lord AC, Sodergren MH, Ahmed AR, Darzi A, Purkayastha S.

Surg Obes Relat Dis. 2016 Aug;12(7):1351-1356. doi: 10.1016/j.soard.2016.01.030. Epub 2016 Feb 1. Review.

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